package thread;

import java.util.*;

public class SyncApiDemo2 {
    public static void main(String[] args) {
        //List<Integer> list = new ArrayList<>();
        //List<Integer> list2 = new LinkedList<>();
        List<Integer> list = Collections.synchronizedList(new ArrayList<>());
        Thread t1 = new Thread(){
            public void run(){
                for(int i = 0; i < 1000; i++){
                    list.add(i);

                }
            }
        };

        Thread t2 = new Thread(){
            public void run(){
                for(int i=1000;i<2000;i++){
                            list.add(i);
                }
            }
        };
        t1.start();
        t2.start();
        try {
            Thread.sleep(50);
        } catch (InterruptedException e) {

        }
        System.out.println(list.size());

    }
}
